Is it A?

humans wrote:Is it A?

_____________________ and so were once with legs.

1) The snake's appendages are similar to lizard's

2) Snakes have appendages similar to a lizard

3) The appendages of snakes resemble a lizard's

4) Snakes have appendages similar to a lizard's


First Test : Subject - Verb Agreement
Since the verb after the blank has "were", the subject has to plural, so the sentence must start with "Snakes"

Second Test : Parallelism
Snakes' appendages need to be compared with the lizard's appendages, so the 4th option fits the bill.